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- Author:
-
Darrel Williams,
Jesse Allen
- Subject:
- Science and Technology
- Institution Name:
- NASA
- Collection:
-
NASA GSFC Scientific Visualization Studio
- Grade Level:
- Secondary, Post-secondary
- Abstract:
Portland. Correct lighting, x2 vertical exaggeration w-Mt. Hood and Mt. Adams. These scenes show Portland, Oregon and the countryside around it as seen by the Landsat Thematic Mapper (TM) instrument. Portland sits on the Willamette River south of its confluence with the Columbia River. The city sits very close to several mountains in the Cascade Range, including Mt. Hood, Mt. Adams, and Mt. St. Helens. The terrain of the area is also shown exaggerated by a factor of two to emphasis terrain features such as the mountains and the Columbia Gorge just north of Mt. Hood and south of Mt. Adams. The shortwave infrared (TM band 5), infrared (TM band 4), and visible green (TM band 2) channels are displayed in the images as red, green, and blue respectively. In this combination, barren and-or recently cultivated land appears red to pink, vegetation appears green, water is dark blue, and artificial structures of concrete and asphalt appear dark grey or black. The natural color images combine TM bands 3, 2, and 1 and map them to red, green, and blue respectively.
- Course Type:
- Learning Module
- Languages:
- English
- Material Type:
- Other
- Media Format:
- Graphics/Photos, Text/HTML, Video
- Technical Requirements:
- Real player
- Conditions of Use:
-
Public Domain
Please give credit to NASA GSFC Scientific Visualization Studio
No restrictions on your remixing, redistributing, or making derivative works.
Give credit to the author, as required.
Your remixing, redistributing, or making derivatives works comes with some
restrictions, including how it is shared.
Your redistributing comes with some restrictions. Do not remix or make
derivative works.
Copyrighted materials, available under Fair Use and the TEACH Act for US-based
educators, or other custom arrangements. Go to the resource provider to see
their individual restrictions.
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